Can a chain freely rotate around a fixed gear, as a means of keeping a platform attached at the other end of an arm level with a gear of the same size? The rotation would not exceed 180 degrees.
Hey there,
Sorry for the delay.
Are you talking about that kind of mechanism?
https://www.robotshop.com/eu/en/ratrig-camera-v-slider-45cm-diy-kit.html
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